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A. P. GREQUE. I

. PLANING MGHINE. f No. 274,565. r Patented Mar?, l883.

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(No Model.) 3 Sheets-Sheet 2.

A. P. CREQUB.

PLANING MACHINE.

No. 274,565. Patented Mar.27,1883.

(No-Model.) 3 Sheets-Sheet. 3.

A..P. CHEQUE.

PLANING MACHINE.

No. 274,565. Patrgegmar. 27, v1883.

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UNITED STATES PATENT OFFICE.

ALLENP. CHEQUE, OF NEW YORK, N. Y.

PLANlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 274,565, dated March 27, 1883.

Application filed August 24, 1882. (No model.)

erative upon an ordinary lathe; and the ob ject ot my improvement is to save the loss of time which is experienced with the ordinary i planing-machines, as now commonly used, owing to the fact that such planes generally have only one cutting-tool, which only cuts while traveling in one direction, so that the time consumed by the tool in returning to the startingpoint for a new cut is lost.

I am aware that planing-machines are well known in which two cuttingtools adapted to cut in opposite directions are used; but such tools are usually mounted upon separate heads whose traveling motion is independent of each other. Such machines, however, which are known as the douhlaheadplaning-machines, are very heavy and expensive, while they cannot be adapted to au ordinary lathe. I obviate these disadvantages by the use of the mechanism illustrated in the accompanying drawings, in which- Figure l is a plan view of the entire machine, showing the material in position to be planed. Fig. 2 is a sectional vie'w of Fig. l upon the line :n nz. Figs. 3 and 4 are sectional views of Fig. l upon the lines y y and z z, respectively. Figs. 5 andare plan views, showing the position of the planing-tools when in operation.

Similar letters referto similar parts throughout the several views.

U is the frame of the machine, uponV which are supported the bed C and cutting mechanism mounted thereon, and the table T, upon which the material to be planed is secured. The longitudinal screw-shaft S, driven by the drum O, has its bearings in the frame U and upon the shaft S. The bed C, which carriesV the cutting-tools, travels in ways 'w fw. A

small shaft, F, which is turned by the handwheel E, is mounted in standards g g, placed upon the bed C in a direction at right angles to the shaft S. The end of the shaft F is ont into two screws, D and D', onehaving` a righthand thread and the other a left-hand thread. Upon these two screws D D are placed two nuts, e f, having anges, through which they are bolted to the sliding pieces A B, which are thus given a traveling movement upon the bed C in a direction parallel to the shaft F. A and B carry the holders L L, in which the tools c d are placed. lis the iron or other material to be planed, and H H are clamps for holding itin position upon the table T. By cutting the end of the shaft F into right and left hand screws itis apparent that a single turnof the shaft causes the respective nuts c j' to move in opposite directions, and with them the tools c d, mounted upon the slides A B, to which the nuts c fare bolted.

The operation of the machine is as follows: When the bed G is at one end ot' the shaft S the shaft F is turned until the tool proper for cutting in that position engages with the sun face to be planed, as shown in Fig. 5. The planer then travels along the shaft S until one cutis made. The shaft Fis then turned again, withdrawing the tool which has j ust been used and presentingthe other, as shown in Fig. b.

The planer then travels bach along the shaft S, making a second cut, and this operation is successively repeated.

Although the'machine above describedhas been shown as a separate machine, itis oh` vions that by slight modifications, which will readily suggest themselves, the described mechanism may be adjusted to be used upon an ordina-ry lathe with equally beneficial rcsults.

Having thus described my invention, l do notclaim, broadly, a planer which will plane in opposite directions; but

I claim- 1. The combination, in a planing-machine, of a table upon which the material to be planed is held and supported with two planing-tools, which are alternately set against the material and operated by mechanism substantially such as described, one of which tools in cutting travels in one direction along the material, and the other of which in cutting travels in the oposite direction, as and for the purpose specie 2. A planer having a stationary work-hold- IOC posite directions, mountedupony the holders 1 A B, and operated by means of the nuts e f, shaft F, and hand-wheel E, all mounted upon the bed C, traveling in Ways w w upon the shaft S, substantially as described.

ALLEN P. CREQUE.

In presence of- HARRY E. LEIBOLD, DAVID MILLIKEN, J r. 

